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<![CDATA[ANALISIS KINERJA ANGKUTAN UMUM KERETA RAIL LINK MEDAN-BANDARA INTERNATIONAL KUALANAMU (KNIA) ]]>
<![CDATA[Saragi, Yetti]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Giawa, Elman Setia]]>
<![CDATA[ ATDS SAINTECH JOURNAL OF ENGINEERING Vol 1 No 1 (2020): Edisi Juni ]]>
Publisher : <![CDATA[Akademi Teknik Deli Serdang ]]>
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<![CDATA[Kinerja angkutan umum merupakan kemampuan atau potensi angkutan umum untuk melayani kebutuhan pergerakan pada suatu daerah, baik berupa transportasi barang maupun transportasi orang. Sedangkan angkutan kereta merupakan kegiatan memindahkan orang atau barang dari satu tempat ke tempat lain dengan menggunakan sarana kereta. Tujuan dari penelitian ini adalah menganalisa bagaimana kinerja angkutan umum kereta Medan-Bandara Internasional Kualanamu (KNIA). Data yang digunakan adalah data primer dan data sekunder. Untuk mengukur tingkat keberhasilan atau kinerja angkutan umum kereta MDN-KNIA ada beberapa parameter / indikator antara lain :faktor tingkat pelayanan yang meliputi kapasitas dan aksesbilitas, dan faktor kualitas pelayanan ditinjau dari tingkat kepuasan penumpang. Hasil penelitian ini menunjukkan bahwa dari hasil analisa tingkat pelayanan diperoleh persen (%) penggunaan kapasitas kereta adalah 28,95%, persentase jumlah penumpang kereta terhadap jumlah penumpang pesawat adalah 9,2% dan aksesbilitas ke stasiun kereta Medan dilalui 24 jenis angkutan umum yaitu Taxi, angkot dan becak. Sedangkan dari hasil analisa kualitas pelayanan diperoleh persentase tingkat kepuasan penumpang yang paling dominanterdapat pada pertanyaan nomor 6 (Tampilan petugas menggunakan seragam yang rapi dan sopan) yaitu 90,5% dan nomor 7 (Petugas bersikap ramah dan tidak memandang status sosial dalam melayani penumpang kereta) yaitu 90,5%.]]>
<![CDATA[TINGKAT PEMANFAATAN DAN FAKTOR YANG MEMPENGARUHI PENGGUNAAN JEMBATAN PENYEBERANGAN ORANG (JPO) DI JL. SM RAJA DAN JL. GATOT SUBROTO MEDAN ]]>
<![CDATA[Saragi, Yetti]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Lumbangaol, Partahi]]>;
<![CDATA[Simangunsong, Frisco]]>
<![CDATA[ ATDS SAINTECH JOURNAL OF ENGINEERING Vol 1 No 2 (2020): Edisi Desember ]]>
Publisher : <![CDATA[Akademi Teknik Deli Serdang ]]>
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<![CDATA[Keberadaan Jembatan Penyeberangan Orang (JPO) perlu dievaluasi agar diketahui efektifitas penggunaannya. Penelitian ini bertujuan untuk mengetahui seberapa besar nilai efektifitas, tingkat pelayanannya serta kepuasan pengguna Jembatan Penyeberangan Orang (JPO) di Jl. SM Raja dan di Jl. Gatot Subrot. Pengamatan dilakukan dengan menghitung volume penyeberang yang menggunakan Jembatan Penyeberangan Orang (JPO) pada jam sibuk hari kerja dan juga pada jam sibuk hari libur. Data ini digunakan sebagai dasar analisis efektifitas dan penentuan sarana penyeberangan yang tepat. Pengumpulan data juga menggunakan data kuisioner kepada sebanyak 24 responden di Jl. SM Raja dan 23 responden di Jl. Gatot Subroto. Kuisioner berisi pertanyaan yang berkaitan dengan komponen fisik JPO. Hasil analisa efektifitas menunjukkan bahwa Jembatan Penyeberangan Orang yang berada di Jl. SM Raja efektif dengan keterangan sangat bermanfaat dengan persentase 95,65%di hari sibuk kerja dan bermanfaat pada hari libur dengan persentase 72,81%. Hasil analisa efektifitas menunjukkan bahwa Jembatan Penyeberangan Orang yang berada di Jl. Gatot Subroto tidak efektif,atau sangat tidak bermanfaat dengan persentase 12,02% di hari sibuk kerja dan pada hari libur dengan persentase 14,18%.]]>
<![CDATA[BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN ABU SEKAM PADI ]]>
<![CDATA[Simanjuntak, Johan Oberlyn]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Pasaribu, Humisar]]>;
<![CDATA[Saragi, Tiurma Elita]]>;
<![CDATA[Panjaitan, Resinanta]]>
<![CDATA[ Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari ]]>
Publisher : <![CDATA[LPPM Universitas HKBP Nommensen ]]>
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<![CDATA[Concete is one of the construction materials used with a need that continues to increase every year based on concete-forming materils, especially cement, which has experienced a fairly large increase. Based on this, many studies have been carried out to reduce the need for cement using silica-containing materials, one of which is husk ash.Rice husk ash is produced from burning rice husk which contains silica. With these properties when mixed into the concrete mixture will improve the characteristics of the concrete. This study aims to determine the compressive strength of conrete achieved form a mixture of rice husk ash in concrete. The specimens made for each addition of the percentage of huck ash were 12 samples, with a cylindrical mold size of 15 cm in diameter and 30 cm in height. Variations of rice husk ash used were 3%, 6%, 9% of amount of cement. The type of test was carried out in the form the compressive strength of concrete and observations were made at the age of 7,14,21 28 days. Form the results of the study it was found that the increase in the compressive strength of conrete from the waste of adding rice husk ash as an additive to cement to creste quality and environmentally friendly concrete.]]>
<![CDATA[Beton Bermutu Dan Ramah Lingkungan Dengan Memanfaatkan Limbah Abu Ban Bekas ]]>
<![CDATA[Simanjuntak, Johan Oberlyn]]>;
<![CDATA[Saragi, Tiurma Elita]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Pasaribu, Humisar]]>;
<![CDATA[Simbolon, Rido Parulian]]>
<![CDATA[ Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli ]]>
Publisher : <![CDATA[LPPM Universitas HKBP Nommensen ]]>
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DOI: 10.51622/eksakta.v2i2.374
<![CDATA[The need for housing is increasing day by day. This is a factor in the visit to the need for concrete as a housing construction material. The more concrete that is produced, the more cement is needed for the construction. Concrete is a composite material (mixture) of several materials, the main ingredient of which consists of a mixture of cement, fine aggregate, coarse aggregate and water. Utilization of waste tire ash in the concrete mix is one of the alternative uses so that ic can ultimately increase the efficiency of cement savings which takes a long time to increase in high prices. With reference to this, this study uses used waste as a cement additive with a mixture composition of 0%, 3%, 6% and 9%. The test specimens were made using a cylinder with a diameter of 15 cm and a height of 40 cm with 48 specimens produced. The results of the compressive strength test of normal concrete (25.45 MPa), while the concrete with a mixture of 3% used tire ash (28.15 MPa), 6% used tire ash mixture (23.46 MPa) and 9% used tire ash mixture (18.60 MPa). From this research, it can be said that compressive strength of concrete using 3% ash produces the greatest compressive strength of 28.15 MPa.]]>
<![CDATA[EVALUASI PERKERASAN JALAN KAKU (RIGID PAVEMENT) PADA JALAN SM RAJA MEDAN DENGAN METODE BINA MARGA ]]>
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Saragi, Yetty Riris]]>;
<![CDATA[Pasaribu, Humisar]]>;
<![CDATA[Pardede, Maruli]]>;
<![CDATA[Hutabarat, Torang]]>
<![CDATA[ Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli ]]>
Publisher : <![CDATA[LPPM Universitas HKBP Nommensen ]]>
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DOI: 10.51622/eksakta.v2i2.395
<![CDATA[axle vehicles with the aim of shortening the distance and travel time from one place to another, as well as an infrastruture that is needed to support development. The design of the Sisingamangaraja – Lubuk Pakam road pavement consisting of a cement concrete slab as a foundation layer and a foundation laver above the subgrade. The purpose of this study was to evaluate the thickness of the pavement using the Highways Method. The research method used is the secondary data collection method. The data collected include traffic data, concrete data, soil data, vehicle axle free data, CBR modulus of subgrade. Plaanning the thickness of the road pavement concrete slab using the Highways Method obtained 300 mm. A planner is expected to have “felling engineering” supported by extensice knowledge and experience gained in the field.]]>
<![CDATA[SIFAT DAN KARAKTERISTIK CAMPURAN BETON MENGGUNAKAN BATU PECAH DAN BATU GULI DARI SUNGAI BINJAI ]]>
<![CDATA[Simanjuntak, Johan Oberlyn]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Pasaribu, Humisar]]>;
<![CDATA[Saragi, Yetty Riris R]]>;
<![CDATA[Sitorus, Sriyanti]]>
<![CDATA[ Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli ]]>
Publisher : <![CDATA[LPPM Universitas HKBP Nommensen ]]>
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DOI: 10.51622/eksakta.v2i2.397
<![CDATA[Concrete is a construction material consisting of a mixture of cement, aggregate, water and with or without admixture if needed. Coarse aggregate and fine aggregate serve as the main filler of concrete as well as reinforcement, while the cement and water mixtured serves as a binder between materials. To find out and study the behavior of each of these concrete constituents, it is necessary to know the characteristics of the materials made as constituents of the concrete. This study was conducted with the aim of comparing the most optimum type of coarse aggregate used and the comparison of the use of cement for coarse aggregate of crushed stone and coarse aggregate of gully originating from North Sumatera area, namely from the Wampu River in Binjai City as a concrete mixture to see its effect on compressive strength of concrete at the same concrete characteristics namely f’c 25 MPa. The results of the normal concrete mix design are obtained by using coarse aggregate of crushed stone and coarse aggregate of boulder in different amounts of cement. The coarse aggregate of crushed stone requires more cement with the amount of cement 411.1 kg/m3 than the coarse aggregate of gum with the amount of cement 388.9 kg/cm3.]]>
<![CDATA[Pengaruh Penambahan Serat Ijuk Terhadap Kuat Tekan Beton ]]>
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Simanjuntak, Johan Oberlyn]]>;
<![CDATA[Simangunsong, Josua Marganda]]>
<![CDATA[ Jurnal Visi Eksakta Vol. 3 No. 1 (2022): Jurnal Visi Eksakta : Edisi Januari ]]>
Publisher : <![CDATA[LPPM Universitas HKBP Nommensen ]]>
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DOI: 10.51622/eksakta.v3i1.570
<![CDATA[Concrete is one of the construction materials consisting of a mixture of coarse aggregate and fine aggregate as a filling material, as well as cement and water as a binder. With the addition of fiber as a partial replacement of cement to obtain a cheaper cost, for simple buildings. With partial replacement of cement with fiber in normal concrete, which aims to determine the effect of partial replacement of cement with fiber against the compressive strength of concrete. By comparing the length variation of fibers which are respectively 4 cm, 6 cm, 8 cm and fibers taken 2% of the weight of cement. Where the calculation analysis (mix desing) using SNI 7656-2012 (procedure for making normal concrete mix plan). Mix design is done in order to determine the proportion of the mixture is done with strong concrete quality planned. The test object is a cylinder with a diameter with a diameter of 15 cm and height of 30 cm. From the results obtained the replacemen of some of the cement with fibers. Where the test results of normal concrete slump of 10 cm, fiber concrete measuring 4 cm by 10 cm, fiber conrete measuring 6 cm byy 9.8 cm and fiber concrete measuring 8 cm by 9.7 cm. And the maximum compressive strength test results obtained decreased, the test value of cylindrical concrete without the addition of fiber of 27.08 MPa, where the compressive strength of concrete by using 2% fibers with a length of 4 cm of 26.70 MPa, concrete fiber 6 cm of 25.94 MPa, and for fiber 8 cm of 24.72 MPa. So that the compressive strength of concrete that occurs decreases from normal concrete without the addition of fibers.]]>
<![CDATA[Analisa Karakteristik Getaran Pada Mesin Asphalt Mixing Plant Tipe Apollo ANP- 1500 Berdasarkan Kapasitas Pembuatan Aspal Jalan Pada Daerah Horizontal, Vertikal Dan Longitudinal Berdasarkan Time Domain ]]>
<![CDATA[Sihombing, Suriady]]>;
<![CDATA[Nababan, Wilson]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Saragi, Yetty Riris]]>;
<![CDATA[Lumbangaol, Partahi]]>;
<![CDATA[Simanjuntak, Salomo]]>
<![CDATA[ SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 3 No 1 (2021): Edisi Agustus 2021 ]]>
Publisher : <![CDATA[Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan ]]>
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DOI: 10.36655/sprocket.v3i1.567
<![CDATA[Asphalt mixing plant machine is a tool used to process several materials into road asphalt, where it is necessary to know how to analyze the vibration characteristics of the asphalt mixing plant machine based on the capacity of making asphalt road in horizontal, vertical and longitudinal areas based on the time domain. The research method is carried out by collecting data on the amount of deviation, speed and acceleration that arise due to the processing of several materials so as to produce road asphalt based on differences in the capacity of different asphalt processed. Based on the measurement results, it is found that the highest vibration occurs at the asphalt mixing plant machine seat for a capacity of 60 tons/hour where the magnitude of the deviation is 0.222 mm in the horizontal direction at 100 seconds, the largest velocity is 11.99 mm/s horizontally in the second 40 mm/s and the largest acceleration is 369.7 mm/s2 in the horizontal direction of the 20th second. According to the ISO IS 2372 standard, the vibration of the Apollo ANP-1500 asphalt mixing plant machine enters class IV with a generator capacity above 75 KW, to be more precise (150KVA = 120KW). Then it can be analyzed that the generator vibration falls into the category of "vibration within tolerance limits and is only operated for a limited time" where the highest speed is 11.99 mm/s.]]>
<![CDATA[Alasan Penggunaan Material Bekas Pada Bangunan ]]>
<![CDATA[lumbangaol, partahi]]>;
<![CDATA[Sidabutar, Ros Anita]]>;
<![CDATA[Simanjuntak, Salomo]]>;
<![CDATA[Sinaga, Andre Damara]]>
<![CDATA[ SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 4 No 2 (2023): Edisi Februari 2023 ]]>
Publisher : <![CDATA[Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan ]]>
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DOI: 10.36655/sprocket.v4i2.896
<![CDATA[This study aims to find out the reasons that encourage the reuse of used materials in buildings. The data collection method was carried out by means of a questionnaire survey and interviews with respondents involved in the use of used materials, especially used wood. Respondents consist of used material traders, used material users, building contractors, foremen and building construction contractors who are used material producers. The research was carried out at used building material sales centers in Medan City, which are usually located on Jalan Pahlawan, Medan Perjuangan District, Jalan BrigJen Katamso, Jalan Gagak Hitam, and Jalan Helvetia Raya. Overall there were 10 respondents who participated. This study concludes that the main reason for using used wood materials is related to the price difference between used materials and new materials. Even though the use of used goods has a positive impact on efforts to preserve the environment, environmental conservation considerations have not become an important consideration in the use of used materials in the city of Medan.]]>
<![CDATA[Korelasi Nilai Hambatan Konus Terhadap Parameter Rembesan Dalam Aplikasinya Pada Dinding Penahan Tanah ]]>
<![CDATA[Saragi, Yetty]]>;
<![CDATA[Bernandus, Riski]]>;
<![CDATA[Sidabutar, Ros Anita]]>
<![CDATA[ SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 4 No 2 (2023): Edisi Februari 2023 ]]>
Publisher : <![CDATA[Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan ]]>
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DOI: 10.36655/sprocket.v4i2.916
<![CDATA[Retaining walls are one of the constructions that are often found as slope safety walls which function to withstand lateral forces from the soil behind them. Retaining walls must be able to withstand shear, overturn, bearing capacity and meet the provisions of SNI 8460 2017 Geotechnical Design Requirements. The retaining wall must also be able to withstand water seepage into the soil behind it so it is necessary to know the amount of the seepage coefficient (k). The value of the seepage coefficient (k) can be determined from the Constant Head and Falling Head laboratory tests as well as by using the correlation from the results of the CPT Cone Penetration Test (which was used in this study). The CPT test was carried out at 4 stations that had experienced slope failure. Furthermore, this study designed a retaining wall in the landslide area by taking into account the magnitude of the seepage coefficient (k). From the four CPT points, the seepage coefficient values were obtained k1 = 1.06E-05 cm/sec, k2 = 5.79E-06 cm/sec, k3 = 6.77E-06 cm/sec and k4 = 6.46E-06 cm/sec. Taking into account the presence of water seepage behind the retaining wall, it is obtained that FK 1.65 still does not meet FK under conditions of high levels of uncertainty and large repair costs (FK requirements > 2.0 according to SNI 8460 2017). From this study, it was found that by calculating the seepage coefficient (k), the FK value was not sufficient and it was suggested that in its implementation, efforts to compact the soil layer by layer behind the wall were needed so that the soil behind the wall was quite dense.]]>
